HT603A is a low density, low compression set, fire retardant silicone foam which is non-toxic, UV and ozone resistant and able to withstand extreme temperatures. Its major applications can be found within the aircraft, automotive, mass transit and electronics industries.

Note: certain thicknesses meet BMS 1-68 Form II, AIMS 04-14-002 A and ABS5767.

See also HT606A which is HT603A backed with AD adhesive.

Applications
  • Gap Filling
  • Seals
  • Thermal Insulation
Product Features
  • Dust sealing
  • FDA compliant (white only)
  • Fire retardant
  • Good thermal insulation
  • High temperature applications
  • Low smoke/ low toxic gas emission
  • Potential for pressure sensitive adhesive
  • UV/Ozone resistant
  • Vibration isolation
Quality standards
  • ABD 0031
  • ABS 5767 (certain dimensions)
  • AIMS 04-14-002A (certain thicknesses)
  • BMS 1-68 Form II (certain thicknesses)
  • ECS 7046-10 (certain thicknesses)
  • FAR 25.853 (a)(1)(i)
  • FAR 25.853 (a)(1)(ii)
  • FDA compliant (white only) in accordance with FDA regulation 21 CFR 177.2600
  • UL94 HF1 & VO
Markets
  • Aerospace
  • Automotive
  • Electronics
  • Industrial
  • Mass Transit

Typical properties

Product Property Value Test Method
Density (kg/m3) 175-440
Width (mm) to 915
Colour White/Grey/Black
Structure Mixed Cell
Thickness 1-25 mm
Temperature Range (°C) -55 to 200
Tensile strength (kPa) 241 ASTM D 412
Compression Force Deflection (kPa) @ 25% deflection 7-35 ASTM D 1056
Compression Set @ 70°C <1% ASTM D 1056
Elongation (%) 90 ASTM D 412
Thermal conductivity (W/mK) 0.06 ASTM C 518
Dielectric Constant 1.34 ASTM D 149
Water Absorption (%) 3.5